Climate change: New ocean critter discovered helping to catch carbon.

Scientists have discovered a new "secret weapon" in the battle against climate change hidden within our oceans.

The creature - a single-celled microbe - can naturally capture and store carbon.

Researchers at the University of Technology Sydney, in Australia, say it could be used to help balance carbon emissions in the atmosphere.

"This is an entirely new species, never before described in this amount of detail," said Professor Martina Doblin, the study's senior author.

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‘Deep Ocean Mission to help strengthen observational network over Indian Ocean’

Ministry of Earth Sciences Secretary M Ravichandran on Monday said that the Deep Ocean Mission will help strengthen observations over the Indian Ocean as the country has over the years benefitted from these them for its statistical and dynamical monsoon forecast modelling.

Ravichandran was addressing the inaugural session of the International Indian Ocean Conference (IIOC) 2022 jointly organised by the Council of Scientific and Industrial Research (CSIR), National Institute of Oceanography and Indian National Centre for Ocean Information Services (INCOIS).

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Once Extreme Ocean Temperatures Are the New Normal

A new analysis finds extreme warming events in the ocean have increased relative to the very far past, with nearly 60% of the ocean experiencing extreme heat in 2019.

Extreme marine temperatures that were once considered rare have officially become the norm for the majority of the world’s ocean. According to a new study, more than half the marine surface is now regularly subjected to extreme heat. These abnormally high temperatures can have far-reaching negative effects on marine animals as well as the local economies that depend on them.

“We need to realize that climate change is happening as we speak.…It has also been happening for quite some time,” said study coauthor Kisei Tanaka, a marine ecologist at NOAA.

Prior to his position at NOAA, Tanaka was a research data scientist at the Monterey Bay Aquarium in California. While he was there, he and Kyle Van Houtan, chief scientist at the aquarium at the time, noticed some unusual changes happening in the bay. Kelp forests were disappearing, and marine species whose normal habitat was the warmer waters of Southern California were starting to appear farther north.

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Multiphase Pipeline Flow Experiments for Enabling Tieback Solutions

The innovation project ChemFlow aims to help reducing the environmental footprint of offshore oil and gas production by enabling subsea tiebacks with complex fluid chemistry. Now the experimental work is taking place.

Tieback solutions to existing oil and gas facilities can play a key role for Norway’s ability to meet emission targets while maintaining a competitive industry.

However, petroleum production systems often deliver fluids with complex physical chemistry. The innovation project ChemFlow aims to develop new models in the multiphase flow simulator LedaFlow taking the properties of fluids with complex chemistry into account.

Ongoing experimental campaigns in ChemFlow reveal new knowledge that is essential for understanding the impact of chemicals on flow behavior and improving the accuracy of the prediction models required for cost efficient and safe design and operation of tie-back systems.

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Why the Indian Ocean is spawning deadly tropical cyclones

Current estimates indicate that more than 1,000 people died. This makes it the deadliest tropical cyclone ever to have made landfall on the southern African subcontinent.

More recently, 2022 has also experienced intense tropical cyclones. On March 11, Cyclone Gombe, a Category 3 storm, made landfall on the Mozambique coastline.

A month earlier, Tropical Cyclone Batsirai intensified to a Category 4 storm on February 2, weakening to a Category 3 storm before making a landfall on the south African nation on February 5.

Until Idai, tropical cyclone Eline, which struck in 2000, was the most devastating tropical cyclone to make landfall in Mozambique.

After Idai, Eline was the strongest— though not the deadliest— cyclone to have hit the southern east African coast.

This ranking as the strongest was soon after challenged by tropical cyclone Kenneth, a category 4 tropical cyclone that made landfall over the border of Mozambique and Tanzania six weeks after Idai.

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Researchers investigate heavy rains over Australia's east coast

At any one time, Earth's atmosphere holds only about a week's worth of rain. But rainfall and floods have devastated Australia's eastern regions for weeks and more heavy rain is forecast. So where's all this water coming from?

We recently investigated the physical processes driving rainfall in eastern Australia. By following moisture from the oceans to the land, we worked out exactly how three oceans feed water to the atmosphere, conspiring to deliver deluges of rain similar to what we're seeing now.

Such research is important. A better understanding of how water moves through the atmosphere is vital to more accurately forecast severe weather and help communities prepare. The task takes on greater urgency under climate change, when heavy rainfall and other weather extremes are expected to become more frequent and violent.

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